060 - National Library of Medicine Call Number (R)

MARC 21 Bibliographic - concise

December 2017

Classification or call number is taken from National Library of Medicine
Classification schedules QS-QZ and W or from Library of Congress
Classification schedules as used by NLM for peripheral and related topics.

Indicators

First - Existence in NLM collection

# - No information provided

Used for call numbers assigned by an organization other than NLM.

0 - Item is in NLM

1 - Item is not in NLM

Second - Source of call number

0 - Assigned by NLM

4 - Assigned by agency other than NLM

Subfield Codes

$a - Classification number (R)

$b - Item number (NR)

NLM uses the Cutter-Sanborn Three-Figure Author Table to create item
numbers and a special numbering scheme in classes W1 and W3 to create item
numbers.